import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.RowSorter;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
import java.awt.BorderLayout;

public class Sorter {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Sorting JTable");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Object rows[][] = { { "A", "A", 1 }, { "E", "E", 4 }, { "Y", "Y", 3 } };
    String columns[] = { "Symbol", "Name", "Price" };
    TableModel model = new DefaultTableModel(rows, columns) {
      public Class getColumnClass(int column) {
        Class returnValue;
        if ((column >= 0) && (column < getColumnCount())) {
          returnValue = getValueAt(0, column).getClass();
        } else {
          returnValue = Object.class;
        }
        return returnValue;
      }
    };

    JTable table = new JTable(model);
    RowSorter<TableModel> sorter = new TableRowSorter<TableModel>(model);
    table.setRowSorter(sorter);
    JScrollPane pane = new JScrollPane(table);
    frame.add(pane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}